Package com.bumptech.glide.load.model

Class ResourceLoader<Data>

java.lang.Object

com.bumptech.glide.load.model.ResourceLoader<Data>

Type Parameters:

Data - The type of data that will be loaded for the given android resource.

All Implemented Interfaces:

ModelLoader<Integer,Data>

public class ResourceLoader<Data>
extends Object
implements ModelLoader<Integer,Data>

A model loader for handling Android resource files. Model must be an Android resource id in the package of the given context.

This class should always be less preferred than DirectResourceLoader because DirectResourceLoader is more efficient for Drawables owned by this package. This class only handles passing through Uris to ResourceDrawableDecoder and ResourceBitmapDecoder. Those classes can handle assets from other applications, but are not as efficient as DirectResourceLoader for assets owned by this package.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	ResourceLoader.AssetFileDescriptorFactory	Loads AssetFileDescriptors from resource ids.
static class	ResourceLoader.FileDescriptorFactory	Deprecated. This class is unused by Glide.
static class	ResourceLoader.StreamFactory	Factory for loading InputStreams from Android resource ids.
static class	ResourceLoader.UriFactory	Factory for loading resource Uris from Android resource ids.

Nested classes/interfaces inherited from interface com.bumptech.glide.load.model.ModelLoader

ModelLoader.LoadData<Data>

Constructor Summary

Constructors

Constructor	Description
ResourceLoader(Resources resources, ModelLoader<Uri,Data> uriLoader)

Method Summary

Modifier and Type	Method	Description
ModelLoader.LoadData<Data>	buildLoadData(Integer model, int width, int height, Options options)	Returns a ModelLoader.LoadData containing a DataFetcher required to decode the resource represented by this model, as well as a set of Keys that identify the data loaded by the DataFetcher as well as an optional list of alternate keys from which equivalent data can be loaded.
boolean	handles(Integer model)	Returns true if the given model is a of a recognized type that this loader can probably load.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ResourceLoader

public ResourceLoader(Resources resources,
 ModelLoader<Uri,Data> uriLoader)

Method Details

buildLoadData

public ModelLoader.LoadData<Data> buildLoadData(@NonNull
 Integer model,
 int width,
 int height,
 @NonNull
 Options options)

Description copied from interface: ModelLoader

Returns a ModelLoader.LoadData containing a DataFetcher required to decode the resource represented by this model, as well as a set of Keys that identify the data loaded by the DataFetcher as well as an optional list of alternate keys from which equivalent data can be loaded. The DataFetcher will not be used if the resource is already cached.

Note - If no valid data fetcher can be returned (for example if a model has a null URL), then it is acceptable to return a null data fetcher from this method.

Specified by:

buildLoadData in interface ModelLoader<Integer,Data>

Parameters:

model - The model representing the resource.

width - The width in pixels of the view or target the resource will be loaded into, or Target.SIZE_ORIGINAL to indicate that the resource should be loaded at its original width.

height - The height in pixels of the view or target the resource will be loaded into, or Target.SIZE_ORIGINAL to indicate that the resource should be loaded at its original height.

handles

public boolean handles(@NonNull
 Integer model)

Description copied from interface: ModelLoader

Returns true if the given model is a of a recognized type that this loader can probably load.

For example, you may want multiple Uri to InputStream loaders. One might handle media store Uris, another might handle asset Uris, and a third might handle file Uris etc.

This method is generally expected to do no I/O and complete quickly, so best effort results are acceptable. ModelLoaders that return true from this method may return null from ModelLoader.buildLoadData(Object, int, int, Options)

Specified by:

handles in interface ModelLoader<Integer,Data>